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International Symposium on Antennas and Propagation (ISAP)

作者： Akkarat Boonpoonga Phichet Nilsuwan Jukkrit Tagapanij Phaophak Sirisuk Department of Electrical and Computer Engineering Faculty of Engineering King Mongkuts University of Technology North Bangkok Bangkok Thailand The Electrical Engineering Graduate Program Faculty of Engineering Mahanakorn University of Technology Bangkok Thailand Department of Telecommunication Engineering Mahanakorn University of Technology Bangkok Thailand International College King Mongkut's Institute of Technology Ladkrabang Bangkok Thailand

In this paper, the performance evaluation of a smart antenna using D3LS and NCLS algorithms has been presented. The simulations are conducted with the scenario of mobile communication systems. They have confirmed the feasibility of the D3LS and NCLS smart antenna applied to mobile communications. It should be note that the smart antenna employed in this paperis purely blind and single snapshot operation. The simulation results show good performance of the smart antenna.

关键词： Direction of arrival estimation Interference Mobile communication Mobile antennas Adaptive arrays Estimation

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Smart antenna using a combination of D3LS and NCLS algorithms

Smart antenna using a combination of D3LS and NCLS algorithm...

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International Conference on electrical engineering/Electronics, computer, Telecommunications and Information Technology, ECTI-CON

作者： Phichet Nilsuwan Akkarat Boonpoonga Jukkrit Tagapanij Phaophak Sirisuk The Electrical Engineering Graduate Program Faculty of Engineering Mahanakorn University of Technology Bangkok Thailand Department of Electrical and Computer Engineering Faculty of Engineering King Mongkuts University of Technology North Bangkok Bangkok Thailand Department of Telecommunication Engineering Mahanakorn University of Technology Bangkok Thailand International College King Mongkut's Institute of Technology Ladkmbang Bangkok Thailand

ISBN: (纸本)9781467320269

This paper presents a smart antenna system using a combination of nonconventional least square (NCLS) optimization and direct data domain least square (D3LS) for direction-of-arrival (DOA) estimation and beamforming, respectively. In the proposed system, NCLS optimization is utilized to estimate DOA of incoming signal first. The estimated DOA is then assisted for initial processing of D3LS in beamforming. The performance in term of estimated signal amplitude and estimated DOA of the proposed system is evaluated via simulations.

关键词： Direction of arrival estimation Optimization Interference Adaptive arrays Estimation Arrays

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Poster abstracts

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Sleep and Biological Rhythms 2016年第1期5卷 A1-A189页

作者： J. Ferrie M. Shipley F. Cappuccio E. Brunner M. Miller M. Kumari M. Marmot A. Coenen J. L. Castillo F. Araya G. Bustamante L. Montecino C. Torres S. Oporto J. Gronli E. Fiske R. Murison B. Bjorvatn E. Sorensen R. Ursin C. M. Portas S. Rajaraman A. Gribok N. Wesensten T. Balkin J. Reifman N. Dursunoglu S. Ozkurt S. Baser O. Delen S. Sarikaya P. Sadler P. Mitchell D. Françon M. Decobert B. Herve A. Richard G. Griebel P. Avenet B. Scatton G. L. Fur D. Eckert A. Jordan A. Wellman S. Smith A. Malhotra D. White D. Bruck I. Thomas A. Kritikos W. Oertel K. Stiasny-Kolster D. Garcia-Borreguero W. Poewe B. Hoegl R. Kohnen E. Schollmayer J. Keffel C. Trenkwalder A. Valle S. Roizenblatt F. Fregni P. Boggio S. Tufik K. Ward L. Robertson L. Palmer P. Eastwood D. Hillman J. Lee S. Mukherjee V. de Padova G. Barbato G. Ficca I. Zilli P. Salzarulo M. Veldi T. Hion V. Vasar M. Kull L. Nowak J. Davis Y. Latzer O. Tzischinsky S. Crowley M. Carskadon M. Anca-Herschkovitsch D. Frey J. Ortega C. Wiseman C. Farley K. Wright A. Campbell A. Neill K. Spiegel R. Leproult E. Tasali N. Scherberg E. van Cauter A. T. Noradina N. A. Karim I. Norlinah A. A. Raymond R. Sahathevan B. Hamidon E. Werth R. Poryazova R. Khatami C. Bassetti R. G. Beran L. Ainley G. Holand J. Duncan H. Kinney B. Davis B. Hood S. Frey C. Schmidt M. Hofstetter P. Peigneux C. Cajochen W.-P. Hu J.-D. Li C. Zhang L. Boehmer J. Siegel Q.-Y. Zhou Y. Sagawa H. Kondo T. Takemura H. Kanayama Y. Kaneko M. Sato T. Kanbayashi Y. Hishikawa T. Shimizu A. Viola L. James L. Schlangen D.-J. Dijk R. Andretic Y.-C. Kim K.-A. Han F. Jones R. Greenspan L. Sanford L. Yang X. Tang K. Dieter E. Uta H. Sven M. Richard N. Oyane S. Pallesen F. Holsten Y. Inoue M. Fujita N. Emura K. Kuroda N. Uchimura A. Johnston J. Astbury G. Kennedy K. Hoedlmoser M. Schabus T. Pecherstorfer S. Moser G. Gruber P. Anderer W. Klimesch N. Naidoo M. Ferber A. Pack D. Neu O. Mairesse G. Hoffmann A. Dris L. Lambrecht P. Linkowski P. Verbanck O. Le Bon N. Matsuura M. Yamao N. Adachi R. Aritomi Y. Komada H. Tanaka S. Shirak University College London London UK University College London London USA Warwick Medical School London UK Warwick Medical School Coventry USA Radboud University Nijmegen Nijmegen Netherlands Department of Neurology University of Chile Santiago Chile Neurology Service Hospital del Salvador Santiago Chile Family Health Center Juan Pablo II Santiago Chile Department of Biomedicine Section on Physiology Univeristy of Bergen Bergen Norway Department of Public Health and Primary Health Care Univeristy of Bergen Bergen Norway Department of Public Health and Primary Health Care University of Bergen Bergen Norway Norwegian Competence Center for Sleep Disorders Haukeland University Hospital Bergen Norway Department of Child and Adolescent Psychiatry Haukeland University Hospital Univeristy of Bergen Bergen Norway Department of Biomedicine University of Bergen Bergen Norway US Army Medical Research and Materiel Command Fort Detrick Frederick USA Walter Reed Army Institute of Research Silver Spring USA Department of Behavioral Biology Walter Reed Army Institute of Research Silver Spring USA Faculty Department of Pulmonology Pamukkale University Medical Denizli Turkey University of Ballarat Ballarat Australia Sanofi-Aventis Recherche et Developpement Paris France Brigham and Women’s Hospital Harvard Medical School Boston USA The University of Queensland Adelaide Australia School of Psychology University of Queensland Brisbane Australia The University of Queensland Brisbane Australia Victoria University Melbourne Australia Department of Psychology Victoria University Melbourne Australia School of Psychology Victoria University Melbourne Australia Philips-Universität Marburg Germany Philips-Universitaet-Marburg Marburg Germany Instituto de Investigaciones del Sueno Madrid Spain Universitätsklinik für Neurologie Innsbruck Austria Universitaetsklinik fuer Neurologie Innsbruck Austria IMEREM GmbH Nuernberg Germany Schwarz Pharma AG Monheim Germany

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Application of a dynamic 4D anthropomorphic breast phantom in contrast-based imaging system optimization: Dual-energy or temporal subtraction?

Application of a dynamic 4D anthropomorphic breast phantom i...

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11th International Workshop on Breast Imaging, IWDM 2012

作者： Kiarashi, Nooshin Ghate, Sujata V. Lo, Joseph Y. Nolte, Loren W. Samei, Ehsan Carl E. Ravin Advanced Imaging Laboratories Duke University Medical Center Durham NC United States Department of Electrical and Computer Engineering Duke University Durham NC United States Department of Radiology Duke University Medical Center Durham NC United States Medical Physics Graduate Program Duke University Durham NC United States Department of Biomedical Engineering Duke University Durham NC United States Department of Physics Duke University Durham NC United States

ISBN: (纸本)9783642312700

We previously developed a dynamic 4D anthropomorphic breast phantom, which can be used to optimize contrast-based breast imaging systems, accounting for patient variability and contrast kinetics [1]. In this study we aim to compare the performance of contrast-enhanced mammographic and tomosynthesis imaging protocols followed by temporal subtraction and dual-energy subtraction, qualitatively and quantitatively across a couple of patient models. Signal-difference-to-noise ratio (SDNR) is measured for the six paradigms of contrast enhanced, temporally subtracted, and dual-energy subtracted mammography and tomosynthesis and compared. The results show how the performance is more dependent on the breast model in mammography than in tomosynthesis. Also, it is observed that dual-energy subtraction can be beneficial in mammography, whereas it is not advantageous in tomosynthesis. Lastly, the results suggest that temporal subtraction in general outperforms dual-energy subtraction. © 2012 Springer-Verlag Berlin Heidelberg.

关键词： Mammography

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Functional movement modeling for robot-assisted upper limb rehabilitation: The case of a simulated reduced-freedom anthropomorphic manipulator

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Revista Brasileira de Engenharia Biomedica 2012年第1期28卷 3-10页

作者： Abadia, Fernando Gonçalves Santiago, Paulo Roberto Pereira de Oliveira, Marco Antônio Assfalk Vieira, Marcus Fraga Post-graduate Program of Electrical and Computer Engineering Federal University of Goiás - UFG Goiânia Go Brazil School of Physical Education and Sport of Ribeirão Preto University of São Paulo - USP Ribeirão Preto SP Brazil School of Electrical and Computer Engineering Federal University of Goiás - UFG Goiânia Go Brazil Laboratory for Bioengineering and Biomechanics Federal University of Goiás - UFG Mail Box 131 Zip Code 74001-940 Goiânia Go Brazil

This paper presents the results of an on-going investigation into the use of an anthropomorphic robotic manipulator with three degrees of freedom (two DOF shoulder joint and one DOF elbow joint) for rehabilitation of a human upper arm. The reduction to three DOF for this manipulator allows for a simpler project, leading to a lower cost of production and maintenance: important factors for its intended wide-spread use in financially restricted areas, e.g., the state of Goiás, Brazil. The project focuses on determining the variations observed for a class of trajectories known as functional movements. These functional movements are trajectories realized when a limb is used for a given function, e.g., combing the hair. In this present paper we use three functional movements: hair combing, bringing a cup to one's mouth and a waving movement. We describe how these functional movements are acquired from test subjects and compared in computer simulations to the equivalent functional movements of our proposed reduced-order anthropomorphic manipulator. Our research indicates that the errors incurred in using a reduced-order shoulder joint are well within the observed variation in the functional movements of human subjects, when compared among different subjects and also between similar functional movements of any one given human subject. Despite the limitations, the proposed manipulator would be viable for rehabilitation of patients in early phases of a stroke, at lower cost of production.

关键词： Patient rehabilitation

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A clonal selection algorithm for the container stacking problem

A clonal selection algorithm for the container stacking prob...

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2011 3rd World Congress on Nature and Biologically Inspired Computing, NaBIC 2011

作者： Carraro, Luiz Antonio De Castro, Leandro Nunes Computer and Informatics Faculty Graduate Program in Electrical Engineering Mackenzie University Sáo Paulo Brazil

ISBN: (纸本)9781457711237

Due to increasing demand, container terminals face the challenges of increasing its service capacity and minimize the time of ships loading and unloading. The assignment of storage locations for reshuffled containers is a problem to the efficiency of container terminals operations, as a wrong assignment may result in several future reshuffles. This paper proposes a meta-heuristic based on the Clonal Selection Algorithm to minimize reshuffle when retrieving containers from a stack. The model competitiveness in accuracy and time are established by extensive numerical experiments comparing with an existing Integer program model. The preliminary results obtained here suggest the proposed model is a promising optimization tool for the container stacking problem. © 2011 IEEE.

关键词： Containers

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Building better interdisciplinary scientists: creating graduate level courses to address the communication gap in interdisciplinary research

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BMC Bioinformatics 2012年第12期13卷 1-2页

作者： Denise R Koessler Elizabeth G Johnson Jordan M Utley Harry A Richards Cynthia B Peterson Department of Electrical Engineering and Computer Science The University of Tennessee Knoxville TN 37996 USA Department of Microbiology The University of Tennessee Knoxville TN 37996 USA UT/ORNL Graduate School of Genome Science and Technology The University of Tennessee Knoxville TN 37996 USA SCALE-IT Program Administrator The University of Tennessee Knoxville TN 37996 USA Department of Biochemistry and Molecular Biology The University of Tennessee Knoxville TN 37996 USA

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Plasmonic focusing with spatially variant polarization

Plasmonic focusing with spatially variant polarization

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Frontiers in Optics, FiO 2011

作者： Zhan, Qiwen Electro-Optics Graduate Program Electrical and Computer Engineering University of Dayton 300 College Park Dayton OH 45040 United States

In this talk, I will present plasmonic nanofocusing inspired by the antenna radiation theory. Optimal plasmonic focusing can be achieved through matching the plasmonic structures to the spatial polarization distributi... 详细信息

ISBN: (纸本)9781557529176

关键词： Plasmonics

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A compton scattering suppression based image reconstruction method for digital breast tomosynthesis

A compton scattering suppression based image reconstruction ...

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2011 IEEE International Workshop on Genomic Signal Processing and Statistics, GENSIPS'11

作者： Xu, Shiyu Chen, Ying Department of Electrical and Computer Engineering Southern Illinois University Carbondale IL 62901 United States Biomedical Engineering Graduate Program Southern Illinois University Carbondale IL 62901 United States

ISBN: (纸本)9781467304900

In this paper, we present a novel statistical reconstruction method based on Compton noise suppression for Digital Breast Tomosynthesis. The physical modeling for X-ray's interaction with tissues was investigated. A Compton noise based statistical model with a conjugate prior was introduced. Results from our proposed method, Backprojection (BP) method, Simultaneous Algebraic Reconstruction Technique (SART) and Maximum Likelihood with Convex Algorithm (MLCA) were compared based on image quality analysis. Compared with other algorithms, our proposed method shows comparable performance. It also produces even better results in the Contrast to Noise Ratio (CNR) evaluation. ©2011 IEEE.

关键词： Image reconstruction

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Effects of slice thickness filter in filtered backprojection reconstruction with the parallel breast tomosynthesis imaging configuration

Effects of slice thickness filter in filtered backprojection...

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2011 IEEE International Workshop on Genomic Signal Processing and Statistics, GENSIPS'11

作者： Cong, Linlin Chen, Ying Zhou, Weihua Biomedical Engineering Graduate Program Southern Illinois University Carbondale IL 62901 United States Department of Electrical and Computer Engineering Southern Illinois University Carbondale IL 62901 United States

ISBN: (纸本)9781467304900

Digital breast tomosynthesis is a novel breast cancer detection technique by allowing the reconstruction of arbitrary planes in the breast from a set of limited-angle projection images acquired at different view angles with a particular tube geometry setup. In this paper, filtered backprojection (FBP) was optimized as the reconstruction method with a parallel imaging breast tomosynthesis system. The slice thickness filter (profile filter) with task-adapted parameters was applied to computer simulated data, in order to investigate the main effects of this kind of filter regarding spatial resolution and artifacts in the reconstructed results. ©2011 IEEE.

关键词： Medical imaging

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